here's business technology reporter david. >> it's not something that you want to see losing 800 job. that's a big impact here in san ramone. >>reporter: 800 jobs is a fourth of the total work force at san ramone headquarters. chevron told affected work twors months ago but didn't make it public until it sent out an all employee e-mail yesterday. all 5 of these support 7 ron and all workers now work side by side in houston. chevron said the headquarters will remain in san ramone. stewart is president and ceo of the san ramone chamber of commerce. he calculates the impact to the local economy. >> millions of dollars. millions. when you take that consideration property values. all of the tax base for any reason if they were to lose any more jobs. tremendous impact. >>reporter: another concern is what alarm relocation of workers will do to the real estate market. barbara reid foster has been selling property hear for 34 years at golden hill broker. she points out that many chevron workers moved here from lower cost areas and may not be homeowner homeowners. >> ended up renting homes inst